The blue ones (1mm is blue, the thicknesses are colour coded) have a soft, kinda velvety/matte texture, and are fairly rigid; they're noticeably stiffer than a standard 1mm plastic pick. I find them to be a very good balance of nimble maneuverability (because they're so thin, and don't get caught on the strings), and positional predictability (because they don't deflect very much, so I know where the tip of my pick is gonna be after I pick a note.